Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
It looks to me that the three mounting holes are in different positions, so I would say no.
The first picture is off a later one, 86 & up, as that is the same type my 86 has. The bottom picture is a plate off of the early K100's as they rubber mounted them. If you had the rubber mounts for the one in the bottom picture is should work, as the mounting points on the transmission didn't change. The big issue with the older rubber mounted one's was that the bolts would bend if you put too much pressure on the footpeg.
As to the exhaust part either one might work, its just that you need the specific mounts for each, and you'd have to match each one up with the muffler you are going to use.